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a mixture of gasses is 2958 oxygen 1172 nitrogen and 5870 argon by volume the mixture is held in rigid 2100 l container
the decomposition of n2o5 yields no2 no3 proceeds as far as a first order reaction with a half life of 30 seconds at a
a sample of krypton gas takes 2033 is to diffuse across a room explain how long will it take the same amount of
a mixture of 0146 moles of c is reacted with 0117 moles of o2 in a sealed 10 l vessel at 500 k producing a mixture of
a gas mixture contains 124 g of n2 68 g of h2 and 264 g of ch4 explain what is the mole fraction of h2 in the
will a lower temperature chemical reaction be expected to give an absorbancetime plot with a slope that is more shallow
the masses and volumes of two cylinders are mesaured the mass of cylinder 1 is 135 times the mass of cylinder 2 the
account for the fact that lif as well as csi have low solubility in water whereas lii and csf are very soluble define
while 1 mole of h2sg reacts with h2ol to form h2g as well as so2g according to the subsequent equation 295 kj of energy
two kilograms of steam contained in a horizontal frictionless piston as well as cylinder initially at 250c and 481m3
a carbon monoxide is a poisonous gas for the reason that if binds strongly to hemoglobin preventing the transport of
list four types of absorptions as well as their approximate wave number that you would expect to determine in the ir
light of a wavelength 2000 angstroms falls on an aluminum surface in aluminum 42 ev are needed to remove an electrona
a each group will require 7 solutions where a single bcg bromocresol green concentration exists 2 x 10-5 m with
the skin temperature of humans is330c and the emmision spectrum of humans at this temperature conforms closely to black
if a buffer solution is 0130 m in a weak acid ka 36x10-5 as well as 0410 m in its conjugate base what is the
5000ml of 0130 m naoh is added to 535ml of 0250 m weak acid ka 822x10-5 explain what is the ph of the resulting
require to prepare 1000ml of a ph400 buffer solution using 0100 m benzoic acid pka420 and 0120 m sodium benzoateexplain
compute the spectral radiance for a blackbody at 2500 k for the wavelength range 4500 angstroms to 4500 10
compute the ph at the equivalence point for the titration of 0130 m methylamine ch3nh2 with 0130 m hcl the kb of
a certain indicator ha has a ka value of 16x10-7 the protonated form of the indicator is blue as well as the ionized
will the oligopeptide gly-met-tyr or the dna sequence agttcact contain more information or could it be the same or is
explain what is the ph of an acetate buffer in which the ch3choohch3coo- ratio is 15 pka acetic acid is
explain the solubility product constant of mnoh2 is log ksp-1272 explain how many milligrams of mnoh2 can be presented
explain which is the best acid to use in the preparation of a buffer with ph 93option-nh2oh kb 91 x 10-9ch3nh2 kb 37